文档介绍：德宏州不同行距对玉米产量的影响
摘要玉米是德宏州重要的粮饲兼用作物,随着玉米育种、栽培技术的发展和田间管理水平的提高,玉米种植的密度和最佳行距也随之发生变化。进行了5种不同行距处理对夏玉米产量的影响试验。结果表明:随行距增加,玉米产量有下降趋势,不同行距间产量存在显著差异,行距50 cm、株距35 cm产量最高,达8 kg/hm2,较行距75 cm、株距23 %,增产效果明显。
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关键词玉米;行距;产量;云南德宏
中图分类号 S513 文献标识码 A 文章编号 1007-5739(2017)07-0003-02
Effect of Different Row Spacing on Maize Yield in Dehong Prefecture
GOU Yu-hong XIAO Wei-hua ZHANG Bi-sheng ZHANG Xiao-mei
(Dehong Institute of Agricultural Sciences in Yunnan Province,Mangshi Yunnan 678400)
Abstract Maize is an important kind of crop for food and feed in Dehong prefecture. With the development of breeding and cultivation technology and the improvement of field management level,its planting density and optimal row spacing had changed. Effect of five different row spacing on maize yield were studied. The results showed that maize yield decreased with the increase of row was significant difference between different row spacing 50 cm had the highest yield(8 kg/hm2),it increased by % compared with CK(row spacing 75 cm),yield increasing was obvious.
Key words maize;row spacing;yield;Dehong Yunnan
德宏傣族景颇族自治州位于云南省西南部,位于东经97°31′~98°43′、北纬23°50′~25°20′之间,属于南亚热带季风气候。全年降雨量1 400~1 700 mm,~ ℃,年日照时数2 281~2 453 h,年积温6 400~7 300 ℃。,其中,,%,~ g/cm3之间,土壤质地疏松,土壤p